Author Topic: Tappet/Valve Adjustment Covers Question. (Read 5442 times)

robdrobd · « **on:** December 20, 2009, 05:44:47 PM »

Are these babies pretty much universal for 550 and 750's throughout the 70's? I just bought these on ebay and are hoping they will fit my 75 550. What do you think?

Gordon · « **Reply #1 on:** December 20, 2009, 05:55:32 PM »

The tappet covers are universal for most Honda bikes of the same era. If they fit a 750 then they'll fit your 550 for sure.

robdrobd · « **Reply #2 on:** December 20, 2009, 05:59:57 PM »

Thanks Gordon, the confidence in your answer was assuring.

robdrobd · « **Reply #3 on:** December 20, 2009, 06:04:26 PM »

By the way, the add said they were off a '78 750

Gordon · « **Reply #4 on:** December 20, 2009, 06:08:23 PM »

Cool. I would say they're the same for all Honda models of that era, but I don't know that for a fact. I do know they're the same for all sohc4's, with the exception of the 650 which has a completely different valve cover design than the rest. I also know that the 350 and 360 twins use those same tappet covers. The GL1000 also uses one of the same for the drive shaft oil filler hole.

Honda was pretty smart about finding ways to save money on production.

p.s.& off-topic: You ever try typing with a 2 year old on your lap? It's not easy!!

myhondas · « **Reply #5 on:** December 20, 2009, 07:26:28 PM »

p.s.& off-topic: You ever try typing with a 2 year old on your lap? It's not easy!!

Next time get your 2yr old to help you type...then it gets really fun.

Gordon · « **Reply #6 on:** December 20, 2009, 07:36:53 PM »

Quote from: myhondas on December 20, 2009, 07:26:28 PM

p.s.& off-topic: You ever try typing with a 2 year old on your lap? It's not easy!!

Next time get your 2yr old to help you type...then it gets really fun.

He knows if he touches the keyboard or the mouse that he has to get down from daddy's lap and go sit in time-out. Stop trying to corrupt him!!!

Bill/BentON Racing · « **Reply #7 on:** December 20, 2009, 07:44:49 PM »

Same tappet cap used on final shaft drive units.The 305's had large caps,CB450T's had covers,Bill

myhondas · « **Reply #8 on:** December 20, 2009, 07:58:01 PM »

Quote from: Gordon on December 20, 2009, 07:36:53 PM

Quote from: myhondas on December 20, 2009, 07:26:28 PM
p.s.& off-topic: You ever try typing with a 2 year old on your lap? It's not easy!!

Next time get your 2yr old to help you type...then it gets really fun.

He knows if he touches the keyboard or the mouse that he has to get down from daddy's lap and go sit in time-out. Stop trying to corrupt him!!!

dead give-away.....you're a dad.....not a granddad......the time will come where you understand to not sweat the little stuff and truely enjoy the little one no matter what.

Gordon · « **Reply #9 on:** December 20, 2009, 08:14:50 PM »

Quote from: myhondas on December 20, 2009, 07:58:01 PM

dead give-away.....your a dad.....not a granddad......the time will come where you understand to not sweat the little stuff and truely enjoy the little one no matter what.

Oh, I watched my Dad turn into a Granddad before my eyes so I know very well the knight-and-day difference. The main difference is that he gets to be the fun guy, now, and let the little ones do whatever they want, but only because he then gets to turn them back over to their parents who have to deal with all of the consequences.

When I was little I remember my Grammie telling my Mom that it's only worth having and raising children for the grandchildren that you get!

robdrobd · « **Reply #10 on:** December 21, 2009, 06:30:35 AM »

I have a two and four year old. That's why I am usually only on here after 9 at night!

Yoshi823 · « **Reply #11 on:** December 21, 2009, 01:34:30 PM »

I have a feeling that there won't be enough clearance between the frame and number 2 and 3 inlet tappet covers for those finned items...I might be wrong. I have a photo somewhere of the top of my 550 engine and this is what i'm thinking of.

Gordon · « **Reply #12 on:** December 21, 2009, 04:44:34 PM »

They look to be much shorter than my ratchet/socket combo that I use to remove my stock covers, so I don't think there will be any clearance issue.

dave500 · « **Reply #13 on:** December 21, 2009, 09:59:43 PM »

ive got those on my 500 ,no clearance problems.if there was a couple of different aftermarket manufacturers they might not be all exactly the same.

faux fiddy · « **Reply #14 on:** December 22, 2009, 05:30:13 AM »

Here's a good discussion on tappet covers.

Is there no respect?

http://forums.sohc4.net/index.php?topic=62864.125

westondc · « **Reply #15 on:** December 22, 2009, 05:35:55 AM »

its amazing how hard it is to find tappet covers if you lose/break one. i was checking clearance and broke the tread from overtightening the cover on my CB500. went to the vintage cycle shop and some others in town looking for one. no luck! strange, you would think they would carry something like that. luckily my brother had an old CB350 and i used one from it until i bought a few extras off eBay. word of advice, keep a couple extra tappet covers on you if your road trippin.
do you have a picture of the finned ones on your bike? I'd like to see how they look.

robdrobd · « **Reply #16 on:** December 22, 2009, 08:42:04 AM »

I have the week after Christmas off and hope to get the engine painted and install the stainless kit. I'll get some pics up by the end of next week. Do you think I can put a bike together in my basement and then drive it up the stairs in the spring?

westondc · « **Reply #17 on:** December 22, 2009, 08:50:27 AM »

Quote from: robdrobd on December 22, 2009, 08:42:04 AM

I have the week after Christmas off and hope to get the engine painted and install the stainless kit. I'll get some pics up by the end of next week. Do you think I can put a bike together in my basement and then drive it up the stairs in the spring?

sure it will make it up the stairs, just be sure to get some video!

dave500 · « **Reply #18 on:** December 22, 2009, 10:12:13 PM »

gday westondc,im still toying with photobucket,,err im stumbling through it,,is that what everyone uses?<a href="http://s857.photobucket.com/albums/ab139/dave500_01/?action=view&current=70sicon.jpg" target="_blank"><img src="http://i857.photobucket.com/albums/ab139/dave500_01/70sicon.jpg" border="0" alt="new paint">[/url]

Gordon · « **Reply #19 on:** December 22, 2009, 11:34:36 PM »

Dave,

Just copy and paste the "IMG" tag that's under the picture you're trying to post.

dave500 · « **Reply #20 on:** December 23, 2009, 12:34:14 AM »

thanks gordon,just trying that now and the paste word is grey!!

ekpent · « **Reply #21 on:** December 23, 2009, 05:52:54 AM »

I think I noticed that TAS in Indiana was selling new tappet gaskets cheap. Yours looks like it has the groove,some do not. Good gaskets will keep your nice freshly painted motor clean.Not sealed well and its a mess. let me see if I can add this link http://cgi.ebay.com/ebaymotors/Honda-CB750-Tappet-Cover-O-Rings-CB550-CB500-CB-750-CB_W0QQcmdZViewItemQQhashZitem58851cc435QQitemZ380190377013QQptZMotorcyclesQ5fPartsQ5fAccessories

westondc · « **Reply #22 on:** December 23, 2009, 10:08:31 AM »

Quote from: dave500 on December 22, 2009, 10:12:13 PM

gday westondc,im still toying with photobucket,,err im stumbling through it,,is that what everyone uses?<a href="http://s857.photobucket.com/albums/ab139/dave500_01/?action=view&current=70sicon.jpg" target="_blank"><img src="http://i857.photobucket.com/albums/ab139/dave500_01/70sicon.jpg" border="0" alt="new paint">[/url]

you can also put pictures into your post: when posting in the forum click on (Additional Options) under the text box, then click the browse button next to the (Attach:) box. locate your picture file and click post. took me a while to figure that out.

Quote from: ekpent on December 23, 2009, 05:52:54 AM

I think I noticed that TAS in Indiana was selling new tappet gaskets cheap. Yours looks like it has the groove,some do not. Good gaskets will keep your nice freshly painted motor clean.Not sealed well and its a mess. let me see if I can add this link http://cgi.ebay.com/ebaymotors/Honda-CB750-Tappet-Cover-O-Rings-CB550-CB500-CB-750-CB_W0QQcmdZViewItemQQhashZitem58851cc435QQitemZ380190377013QQptZMotorcyclesQ5fPartsQ5fAccessories

i've been looking for a batch of seals. dont understand why all tappet covers are sold without these.

dave500 · « **Reply #23 on:** December 23, 2009, 12:15:56 PM »

take an old seal/"o"ring to your local bearing service ,theyll match them up.mine were .20c each!

MCRider · « **Reply #24 on:** December 23, 2009, 12:34:20 PM »

Quote from: westondc on December 23, 2009, 10:08:31 AM

SNIP

i've been looking for a batch of seals. dont understand why all tappet covers are sold without these.

If they aren't overtightened to begin with they'll last forever. I'd go to a hardware store. When you install them, put a least a fingertip of oil on them. Some install lube, teeny bit of grease, etc. hand tighten and a skosh with a wrench.

The ones with the fins give enough to grab onto, just handtighten, maybe with a glove, and some lube on the Orings.

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Author Topic: Tappet/Valve Adjustment Covers Question. (Read 5442 times)